Year
1998
$1,695
1999
$20,035
2000
$23,988
2001
$21,963
2002
$17,551
2003
$16,984
2004
$10,772
2005
$14,934
2006
$13,997
2007
$8,596
2008
$8,891
2009
$4,099
2010
$2,264
$165,769